Sole-channeling machine



J. H. DOYLE.

sou; CHANNELING MACHINE.

APPLICATION FILED DEC. 22,1919, 1,399,753 Patented Dec. 13, 1921,

2 SHEETS--SHEET l.

-'J. H. DOYLE.

SOLE CHANNELING MACHINE.

APPLICATION FILED DEC. 22I 1919- 1,399,753, Patented Dec. 13, 1921.

2 SHEETS-SHEET 2- UNITED STATES PATENT OFFlCE.

JOSEPH HENRY DOYLE, OF AUBURN, NEW YORK, ASSIGNOR TO UNITED SHOE MACHINERY CORPORATION, OF lATERSON, NEXV JERSEY, A CORPORATION OF NEW JERSEY.

SOLE-CHANNELING MACHINE.

Application filed December 22, 1919.

To all to iwm it may concern Be it known that I, Josnrrr H. DOYLE, a citizen of the United States, residing at Auburn, in the county of Cayuga and State of New York, have invented certain new and useful Improvements in Sole-Channeling Machines; and I do hereby declare the following to be a full, clear and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to sole channeling machines, and more particularly to improvements in the presser-foot used in such machines for holding the sole on the support while the channeling knives are operating.

The present day demand for pointed toe shoes require a sole narrowing sharply at the end of its forepart. These are called peaked toe soles. This type of sole is used in both welt and turn work and particularly for womens shoes. In the sole sizes used for womens shoes the contracted space at the toe of the sole is very marked. As a result of the sharp angle necessarily formed by the channel cut at the tip of the toe, it is extremely diiiicult to swing the sole at the toe, to channel from one side to the other, without an engagement of the heel of the channel knife with the edge of the channel flap overlying the channel already cut. Such an engagement prevents the sole from turning easily beneath the presser-foot and the drag thus imposed on the sole stretches and twists its toe out of shape. This is true however the edge knife may be shaped whether to form a lip for an insole o shoulder for a turn sole.

The object of the present invention is to remove the difliculty just referred to and provide for a smooth, unobstructed swinging of the sole beneath the presser-foot. It is, of course, understood by those skilled in the art, that during the period of swinging the sole at the toe of peaked toe soles the feed of the sole through the machine is stopped.

In accordance with this object the important feature of the invention which accomplishes the desired purpose is the new form of presser-foot. It is proposed to so form the presser-foot that as the sole is swung, and the heel of the channeling knife approaches the edge of the flap overlying the channel just cut, the channel flap will be en- Specificaticn of Letters Patent.

Patented Dec. 13, 1921.

Serial No. 346,606.

gaged and lifted by a formation designed for this purpose, on that portion of the presser-f0ot which bears on the sole adjacent the heel of the channeling knife.

While the novel presser-foot may be embodied in a channeling machine for either welt or turn work it is particularly adapted to welt work when the character of the sole stock is such that it ismore easily distorted by the thereon hereinafter referred to. Accordin ly the invention has been illustrated as applied to the machine for making Economy insoles disclosed in Letters Patent of the United States to William C. Meyer, No. 984,773, dated February 21, 1911.

Bearing the object and scope of the invention in mind, its preferred form, illustrated 111 the accompanying drawings, will first be descrlbed and then defined in the appended claims.

In the accompanying drawings Figure 1 is an end elevation of the machine shown in said Meyer patent except that the hammer mechanism has been removed and a knife slide lifting mechanism added which does not form a part of the present invention; Fig. 2 is a detail, in elevation of the presserfoot and adjacent parts. In this view a transverse section of an insole is shown on the sole support, the section being taken near the tip of the toe and the insole being in the position it assumes just before the swinging movement about the channeling knife is completed; Figs. 8 and 4t are diagrammatic representations, in plan, of the position of the presser-foot relative to the channel flap just before and just after, respectively, the swinging movement takes place.

In the embodiment of the invention illus trated in the drawings, the sole support 2 with its supporting toggle a; the fourmotion feed-plate 6 with its operating earn 8; the channeling knife 10 carried by the knife block 12 on the knife slide 14c; the lip forming knife 16 carried by the knife block 18 on the knife slide 14; the edge gage 20 adjusted by the lever 22 through movement of the hand lever 24; and all intermediate operating connections for said parts; all may be, and preferably are, substantially the same as like parts in said Meyer patent hereinbefore referred to, except for the shape of the channeling knife.

The new feature of the present invention 7 parallel, however, as has heretofore been nel which has just been cut.

customary, the foot 30 for the channeling knife is provided with a plow like formation 32 at its outer edge. This formation may conveniently, although not necessarily, be produced by recessing the outer edge of the foot 30 just above its sole engaging end as indicated at 34. The preferred construction .is best shown in Fig. 2, it being noted that the point of the plow 32 is cut off, or otherwise blunted, and the blunt end 36 is beveled slightly for a purpose presently to be explained. The presser-foot construction described provides a plow located above the heelof the channeling knife 10 and extending somewhat beyond it. In the present instance the cutting blade 38 of the channel ing knife 10 is relatively thin throughout its width and thus lifts the flap which it produces, only slightly above the face of the sole, in contradistinction to the material uplifting illustrated in said Meyer patent hereinbefore referred to.

Referring now to Fig. 3 the full and dotted marginal lines on the insole indicate the channel and lip cuts respectively, and, remembering that the presser-foot 26 is fixed relative to the insole, except for its radical movement with the knife slide 14:, the ad- Vance ends of these cuts are shown in their relation to the presser-foot just as the insole is about to be swung to carry the cuts about the tip of the toe. In Fig. 3 the channeling knife foot 30 bears on the insole stock in advance of the cutting edge of the channeling knife, but as the insole is swung its relation to the presser-foot changes with the result that just before the turn is completed the blunt end of the plow 32 engages the edge of the channel flap overlying the chan- The beveled end 36 of the plow, which is slightly beyond the heel of the channeling knife 10, acts to direct the flap upward and then insinuate itself beneath the slightly raised flap. Thus, by directing the flap into the recess 3 i formed for its reception at this time, the

edge of the flap is removed from a position where it can be engaged by the heel of the channeling knife and the swinging of the sole may be completed without a drag thereon, which would cause a distortion of its toe. The insole is now in the position relative to the presser foot shown in Fig. 4:, with the plow 32 beneath the channel flap. On the resumption of the operation of the feed-plate 6, however, the insole is immediately moved in a direction to carry the channel flap off of the presser-foot. The direc-' tion of feed of the sole is indicated by arrows on Figs. 3 and 4.

The improvement, while apparently simple, is of material advantage where the sole being operated upon is of the peaked-toe type, it being apparent to those skilled in the art that with soles having round toes the channeling about the toe is accomplishedby a gradual turning movement which eliminates the problem herein considered and solved.

The nature and scope of the present invention having been indicated and the preferred embodiment of the invention having been specifically described, what is claimed as new, is:

1. A presser-foot for sole channeling machines in the form of a plate having a plow like formation on one of its lateral edges.

2. A presser-foot for sole channeling machines in the form of a plate having a plow like formation on one of its lateral edges provided with a blunt end.

3. A presser-foot for sole channeling machines in the form of a plate having a recess in one of its lateral edges above its sole engaging end.

i. A presser-foot for sole channeling machines in the form of a plate having a recess in one of its lateral edges above its sole engaging end and a beveled surface between said recess and end.

5. A presser-foot for sole channeling machines in the form of a plate having two distinct sole engaging feet, one of said feet having a straight outer edge and the other having a concaved outer edge. V

6. A sole channeling machine having, in combination, a channeling knife; an edge knife; and a presser-foot, bearing on the stock in advance of said knives, having a plow like formation above the heel of said channeling knife.

7. A sole channeling machine having, in combination, a channeling knife; an edge knife; and a presser-foot, bearing on the stock in advance of said knives throughout the length of the cutting blades thereof, having a plow like formation provided with a blunt end extending slightly beyond the heel of said channeling knife.

8. A sole channeling machine having, in combination, a channeling knife having a blade formation providing a heel; and means to prevent said heel from engaging the edge of the previously out channel flap as the sole is swung at the toe.

9. A sole channeling machine having, in combination, a channeling knife having a blade formation providing a heel; and

means for lifting the previously cut channel flap as the sole is swung at the toe to permit gaid heel to enter the channel beneath said 10. A sole channeling machine having, in combination, a channeling knife having a blade formation providing a heel; and a presser-foot constructed and arranged to remove the previously cut channel flap from the path of movement of said heel as the sole is swung at the toe.

11. A presser-foot for sole channeling machines comprising a plate, one end of which forms the sole engaging surface thereof, having a plow like projection extending laterally from said end.

12. A presser-i'oot for sole channeling machines comprising a plate, one end of which forms the sole engaging surface thereof, having its width above said end reduced and a sloping edge between said reduced portion and the sole en a in surface.

aosn rri HENRY DOYLE. 

